These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.
Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.
We built Ionic to be a blank slate that you can easily customize and modify to fit your brand, while still following the standards of each platform. The best apps in the app stores are fully customized, and we want to make it easy to do the same with your Ionic apps.
We’ve made theming Ionic apps easier than ever. Ionic is built on top of Sass, which allows us to set some default styles for your app but makes it extremely easy for you to change our defaults.